ML20082S789
| ML20082S789 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 12/01/1983 |
| From: | Schroeder B, Scott D COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE) |
| References | |
| 83-1159, NUDOCS 8312150003 | |
| Download: ML20082S789 (15) | |
Text
._ _-
3 OPERATING DATA REPORT DOCKET NO. 050-237 DATE Dec. 1, 1983
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' COMPLETED BY B. A. Schroeder TELEPHONE (815) 942-29Q0_
OPERATING STATUS 1.
Udit Name:
Dresden II 2.
Reporting Period: November, 1983 3
Licensed Thermal Power (MWt):
2,527 4.
Nameplate Rating (Gross MWe):
828 5
Design Electrical Rating (Net MWe): 794 6.
Maximum Dependable Capacity (Gross MWe):
812 7
Maximum Dependable Capacity (Net MWe):
772 8.
If Changes Occur in Capacity Ratings (ltems 3 Through 7) Since Last Report, Give Reasons:
N/A 9
Power Level to Which Restricted, if Any (Net MWe):
N/A 10.
Reason: For Restrictions, if Any: N/A This Month Yr-to-Date -
Curoulative.
11.
Hours in Reporting Period 720 8016 118776 12.
Number of Hours Reactor Was Critical 607.8 4635.62 91,493.47 13.
Reactor Reserve Shutdown Hours 0
0 0
14.*
Hours Generator On-Line 563.92 4363.28 90,189.92 15 Unit Reserve Shutdown Hours 0
0 0
16.
Gross The"rmal Energy Generated (MWH) 1.165.246 9.616.323 175,097,832 17 Gross Electrical Energy Generated (MWH) 375.340 3,075,451 55,963,717 l
18.
Net Electrical Energy Generated (MWH) 354.078 2.879.500 52,876,690 19 Unit Service Factor 78.32 54.43 75.93 20.
Unit Availability Factor 78.32 54.43 75.93 21.
Unit Capacity Factor '(Using MDC Net) 63.70 46.53 57.67 22.
Unit Capacity Factor (Using DER Net) 61.94 45.24 56.07 23 Unit Forced Outage Rate 21.68 19.28 11.72 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, a_nd Duration of Each):
N/A
- 25.
If Shut Down At End Of Report Period, Estimated Date of Startup:
N/A
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t OPERATING DATA REPORT DOCKET NO.
050-249 DATE Dec.
1, 1983 1
' COMPLETED BY B. A. Schroeder -
TELEPHONE rg,q 947_797n
_0PERATING STATUS NOTES 1.
Unit Name:
Dresden III 2.
Reporting Period: November. 1983 3
Licensed Thermal Power (MWt):
2,527 4.
Nameplate Rating (Gross MWe):
828 5
Design Electrical Rating (Net MWe): 794 6.
Maximum Dependable Capacity (Gross MWe): 812 7
Maximum Dependable Capacity (Net MWe): 773 8.
If Cnanges Occur in Capacity Ratings (Items 3 Through 7) Since Last Report, Give Reasons:
j N/A 9.
Power Level to Which Restricted, if Any (Net MWe):
N/A 10.
Reasons For Restrictions, If Any:
N/A This Month Yr-to-Date Cumulative 11.
Hours in Reporting Period 720 8016 108361
- 12. Number of Hours Reactor Was Critical 0
6454.3 82.845.0 13 Reactor Reserve Shutdown Hours 0
0 0
14.
Hours Generator On-Line 0
6403.1 79,861.1 15 Unit Reserve Shutdown Hours 0
0 0
16.
Gross Thermal Energy Generated (MWH) 0 13.699.358 159,961.098 17 Gross Electrical Energy Generated (MWH) 0 4.387.788 51,952,919
' 18. Net Electrical Energy Generated (MWH)
-3,349 4.151.502 49.234.147 19 Unit Service Factor 0
79.88 73.70 20.
Unit Availability Fcetor 0
79.88 73.70 21.
Unit Capacity Factor-(Using MDC Net) 0 66.99 58.78 22.
Unit Capacity Factor (Using DER Net) 0 65.23 57.22 23 Unit Forced Outage Rate 0
2.21 12.66 24.
Shutdowns Scheduled Over Next 6 Months (Type, Date, and Duration of Each):
N/A 25 If Shut Down At End Of Report Period, Estimated Date of Startup: Mid-Januarv. 1984
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DOCKET NO. 050-237 UNIT NAME Dreeden II UNIT SHUTDOWNS AND POWER REDUCTIONS DATE Dec.
l.
1983 COMPLETED BY B. A. Schroeder TELEPHONE M 942-2920-REPORT MONTH NOVEMBER. 1983 METHOD OF LICENSEE CAUSE & CORRECTIVE NO.
DATE TYPEl DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO (HOURS)
DOWN REACTOR 3 REPORT f CODE 4 CODES
. PREVENT RECURRENCE Mid-Cycle outage for reinspec-12 83-11-11 F
68.9 B
1 tion of cracked recirc.- welds by U.T. and steamline snubber visuai reinspection.
Rx scrammed on low water level 13 83-11-16 F
28.17 A
3 due to a failure of a discharge check valve to open on a con-densate booster pump which was just started.
4
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Rx feedwater check valve body 14 83-11-21 F
58.48 A
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to cover leakage - repaired.
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2 3
4 F: Forced Reason:
Method:
Exhibit G-Instructions for S:
Scheduled A-Equipment Failure (Explain) 1-Manual Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling
.3-Automatic Scram Event Report (
) File D-Regulatory Restriction 4-Other (Pxplain)
E-Operator Training & License Examination F-Administrative G-Operational Error H-Other (Explain)
DOCKET NO.-
050-249 I.,
f UNIT NAME Dre d*n III UNIT SHUTDOWNS AND POWER REDUCTIONS DATE Dec.
1.
1983
.t COMPLETED BY B. A. Schroeder
- f TELEPHDNE (815) 942-2920
'J
' REPORT MONTH NOVEMBER, 1983 METHOD OF LICENSEE CAUSE & CORRECTIVE NO.
DATE TYPEI DURATION REASON 2 SHUTTING EVENT SYSTEM COMPONENT ACTION TO l
(HOURS)
DOWN REACTOR 3 REPORT f CODE 4 CODE 5 PREVENT RECURRENCE Refueling, ISHI, ISI and 8
83-9-30 S
720 C
1 turbine overhaul outage.
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9 1
82 3
4 F: Forced Reason:
Method:
Exhibit G-Instructions for S: Scheduled A-Equipment Failure (Explain) 1-Manual
' Preparation of Data B-Maintenance or Test 2-Manual Scram Entry Sheets for Licensee C-Refueling 3-Automatic Scram Event Report (
) File D-Regulatory Restriction 4-Other (Explain)
E-Operator Training & License Examination F-Administrative G-Operational Error H-Other (Explain)
=.. -
AVERAGE DAILY UNIT POWER LEVEL
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DOCKET NO. 050-249 UNIT III
, DATE Dec. 1, 1983
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COMPLETED BY B. A. Schroeder 4
TELEPHONE 815/942-2920 l
r MONTH November, 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (HWe-Net)
(MWe-Net) 1 0
17 0
2 0
18 0
3 0
19 0
1 4
0 20 0
5 0
21 0
(
4 6
'O 22 0
0 0
7 23 0
0 8
24 0
U 9
25 0
0 10 26 11 0
27 0
12 0
28 0
l 13 0
29 0
14 O
30 0
0 15 31 l
0 16 l
/
/
AVERAGE DAILY UNIT POWER LEVEL
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DOCKET NO. 050-237 UNIT II
,DATE Dec. 1, 1983 COMPLETED BY B. A. Schroeder TELEPHONE 815/942-2920 MONTH November, 1983 DAY AVERAGE DAILY POWER LEVEL DAY AVERAGE DAILY POWER LEVEL (MWe-Net)
(MWe-Net) 1 784 17 n
2 783 18 362 3
773 19 573 4
777 20 532 5
782 21 367 6
749 22 o
779 7
23 0
z-8 780 24 231
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9 780 25 353 10 696 26 54 2 11 0
27 682 12 0
28 744 12 703 13 29 594 14 253 30 15 649 31 16 647
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/
DRESDEN UNIT 2 SAFETY RELATED MAINTENANCE - NOVEMBER, 1983 9m MALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION U2 250VDC Preventive W.R. #28380 N/A N/A Investigated battery charge tripping B:ttery problem.
Chcrg2r A & B 24/48VDC Preventive W.R. #30723 N/A N/A Repaired the battery charger tripping Bettery problem.
Cherg rs N/A N/A Checked to determine proper fuse size APRM Power Preventive W.R. #30850 Supplies for APRM power supply.
- 3 250V Bat-Preventive W.R. #30650 N/A N/A Conducted test to determine interaction tery Charger between U2 250V battery charger and U3 24/48 volt battery charger.
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DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - NOVEMBER. 1983 HALFUNCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION Fusi Chrnnels Preventive W.R. #29958 N/A N/A Installed new channels on 184 new fuel bundles for D3C9 operation.
N/A N/A Cleaned and inspected scram relays.
Scram Relays Preventive W.R. #30617 (Centractors)
EPN #590-108A, B,C,D,E,F,G,H 590-109A,B,C, D
U3 Rod Move-Preventive W.R. #30977 N/A N/A Replaced U3 rod movement switch.
ment Switch HPCI Time Preventive W.R. #30646 N/A N/A Removed, adjusted and reinstalled time Daley Relay delay.
EPN #3-2330-102A-1 HPCI Time Preventive W.R. #30647 N/A N/A Removed, adjusted and replaced time delay.
Delay Relay EPN #3-2330-102B-1 N/A N/A Replaced four APRM/RBM trip level push-APRM/RBM Trip Preventive W.R. #30084 Level Push-buttons.
buttons, EPN
- 756-301A,B, C,D I
N/A N/A Replaced broken spring.
Refuel Grapple Preventive W.R. #30897 N/A N/A Tested valve per work package.
Instr. Line Preventive W.R. #30153 Flow Check Valve 3-220-54, EPN #CU3-220-54
DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - NOVEMBER, 1983 E WNCTION' NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE' ACTION Instr. Line Preventive W.R. #30156 N/A N/A Tested valve per work package.
Flow Check Valva.3-262-6A, EPN #CV3-262-6A Instr. Line Preventive W.R. #30152 N/A N/A Tested valve per work package.
Flow Check Valva 3-263-2-11, EPN #
CU3-263-2-1I N/A N'/A Tested valve per work package.
Instr. Line Preventive W.R. #30154 Flow Check Valve 3-262-SA, EPN #
CU3-262-5A Instr. Line Preventive W.R. #30155 N/A N/A Tested valve per work package.
Flow Check jValve 3-262-2-5B, EPN j#3-262-2-5B N/A N/A Tested valve per work package.
Instr. Line Preventive W.R. #30157
' Flow Check Valve 3-262-
- 2-6B,EPN l#CU3-262-6B D3 Reactor Preventive W.R. #27916 N/A' N/A Removed Rx head, vent lines, insulation Head dryer and separator for refueling.
i
! D3 Diesel Preventive W.R. #30526 N/A N/A Heat exchange cleaned and reinstalled.
- Generator I
DRESDEN UNIT 3 SAFETY RELATED MAINTENANCE - NOVEMBER, 1983
'M ELFWCTION NATURE OF LER OR OUTAGE EQUIPMENT MAINTENANCE NUMBER CAUSE RESULT CORRECTIVE ACTION D3 Rx Head Preventive W.R. #29811 N/A N/A Reinstalled Rx head for chemical cleaning work.
U3 250VDC Preventive W.R. #30803 N/A N/A Monitored and adjusted as necessary the Battery operation of the battery charger.
Charger N/A N/A Ground welds per work request for non-Class 2 ISI Preventive W.R. #28917 Welds destructive examination.
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SUMMARY
OF OPERATING EXPERIENCE UNIT TWO NOVEMBER, 1983
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Il-l to 11-11 Unit 2 entered the month at a power level of 818 MWe and t
operated continuously until November lith when the unit was manually shutdown for a Mid-Cycle examination.
11-11 to 11-13 The Mid-Cycle exactnation was required due to the previous refueling outage when cracks were discovered in several recirculation piping welds. At that time weld overlays were applied to ensure minimum wall thickness. UT examina-tion during this outage found no apparent changes in the affected welds with respect to crack growth.
This shutdown also required snubber inspection due to several which were found defective during the previous refueling out-age. All drywell snubbers were visually inspected. The instrumented snubbers were also monitored during the shutdown and startup of the reactor unit. No defects roted.
11-13 to 11-16 The unit was returned to service but only operated briefly.
During normal unit operation the NSO changed the condensate booster pumps to a different operating lineup. The discharge check valve on the pump just started failing to open causing a low pressure auction trip on the Rx feed pumps, thus the reactor scrammed on low water level.
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SUMMARY
OF OPERATING EXPERIENCE - Con't UNIT TWO l
Il-16 to Il-24 The unit wa's once again returned to service but never
~
reached full pow'er. Leakage in the drywell increased which i
required a unit shutdown on the 21st. A feedwater check valve developed a gasket leak between the valve body and top After repairs, the unit was returned to service.
cover.
Il-24 to Il-30 The unit operated at a reduced power level for several days due to reactor feed pump bearing and seal problems. By months end the unit reached 724 MWe with one of the three pumps.out of service and being repaired.
Unit 2's monthly capacity factor was 62.55% with an avail-ability of 78.32%.
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SUMMARY
OF OPERATING EXPERIE! ICE UNIT THREE NOVEMBER, 1983
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11-kto11-30 Unit 3 was shutdown for the entire month for its scheduled,
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refueling and equipment overhaul outage. Major work includes:
1)
H.P. Turbine and main generator overhaul
- 2) Inservice inspection of welds
- 3) ISHI of recire. pipe welds
- 4) Painting of torus
- 5) LPRM removal and replacement
- 6) CRD removal and replacement
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Commonwealth Edison Dresden Nuciear Power Station R R. #1 I
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Morris. Imr > s 60450 Telepheae 816/942-2920 4
r December 1, 1983 L
DJS LTR: 83-1159 Director, Office of Inspection and Enforcement United States Nuclear Regulatory Commission Washington, DC 20555 Attention: Document Control Desk
Dear Sir:
Enclosed, please find Dresden Station's opere:ing data for last month. This information is supplied to your effice per the instruc-tions set forth in Regulatory Guide 1.16.
SincereJy,
)
(kk D.
Scott Station Superinterdent Dresden Nuclear Pcwer Station DJS: BAS:hjb Enclosure cc: Region III, Regulatory Operations, U.S. NRC Chief, Division Nuclear Safety, State of IL U.S. NRC, Document Management Branch Nuclear Licensing Administrator Nuc. Sta. Div. Vice Pres.
Manager, Tech. Serv. Nuc. Sta.
Tech. Staff EA On-Site NRC Inspector Sta. Nuc. Eng. Dept.
Comptroller's Office PIP Coordinator INPO Records Center 6
File /NRC Op. Data File / Numerical
')*
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